"Do you not know that the underground lands are shared by many worlds? It is all one underground, a vast place, and it is but a trick on which globe one will surface on coming out. This is the reason that the inside of every world is so much vaster than the outside. You are fooled by the shape of these little balls on which things live and crawl; you see the universe inside out; you see the orbs as containing and not contained. I will teach you to see it right if you please me."